<?php

require_once './gg.php';

$gid = $_REQUEST['gid'];
$username = $_REQUEST['username'];
$img = $_REQUEST['img'];
$gname = $_REQUEST['gname'];
$price = $_REQUEST['price'];
$count = $_REQUEST['count'];

$sql = "SELECT * FROM cartinfo WHERE gid = $gid AND username = '$username'";

$result = mysqli_query($conn, $sql);

$data = mysqli_fetch_assoc($result);

if($data) {
  $count = $data['count'] + $count;
  $id = $data['id'];

  // echo $count;

  $sql = "UPDATE cartinfo SET count = $count WHERE id = $id";

  mysqli_query($conn, $sql);

  $rows = mysqli_affected_rows($conn);

} else {
  $sql = "INSERT INTO cartinfo(gid, username, img, gname, price, count) VALUES ($gid, '$username', '$img', '$gname', $price, $count)";

  mysqli_query($conn, $sql);

  $rows = mysqli_affected_rows($conn);
}

if($rows > 0) {
  echo json_encode(array(
    'code' => 1,
    'msg' => '成功'
  ));
}





